|Introduced||October 15, 2019|
The Titan Security Key is a FIDO-compliant security token developed by Google which contains the Titan M cryptoprocessor which is also developed by Google. It was first released on October 15, 2019.
Depending on the features, the key costs $25-$35, but Google has provided them for free to high-risk users. It is considered a more secure form of multi-factor authentication to log in to first-party and third-party services and to enroll in Google's advanced protection program. In 2021, Google removed the Bluetooth model due to concerns about its security and reliability.
The Bluetooth models initially had a security bug that allowed anyone within 30 feet to make a clone of the key. The security firm NinjaLab has been able to extract the key using a side channel attack. In 2019, Google has put a bug bounty up to 1.5 million USD on the Titan chip.